Variant angina and coronary artery spasm.
D000788:Angina Pectoris, Variant / Q000188:drug therapy / Q000209:etiology*; D003329:Coronary Vasospasm / Q000150:complications* / Q000209:etiology*; D006801:Humans; D005996:Nitroglycerin / Q000627:therapeutic use
D005996:Nitroglycerin